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Routine Analytical Testing Services

Unlock unmatched quality and speed with Assay360

 

Routine testing forms the cornerstone of a healthy biologics program. Evaluating a product’s safety, quality, and efficacy prevents potential problems that more specialized tests might miss. Through all stages of development, WuXi Biologics provides routine analytical testing services, called Assay360, for a wide range of modalities. Our full spectrum of assays, dedicated lab facilities, industrial benchmark instruments, and professional team of scientists accelerate your biologics development journey with expert analysis, rapid delivery, and results you can trust.

 

Key features

 

Unmatched capability and capacity

  • Over 6 global analytical labs
  • Over 10 global quality control (QC) labs
  • Over 200,000 biologic samples tested per year
  • Over 4,000 lots of raw materials tested per year
  • Automation platform for high-throughput analysis

 

Fast delivery

  • Rapid project initiation
  • Ready-to-use (RTU) methods
  • Fast turnaround time

 

Uncompromising quality

  • GMP compliance
  • CNAS certification
  • Compliance with global regulatory standards
  • Experience with region-specific testing requirements

 

WuXi Biologics’ strong global network for analytical testing

 

Analytical capabilities

 

WuXi Biologics brings globally recognized analytical capability to every stage of your project, driving high standards and efficiency. Our innovative methods streamline raw material analysis and excipient testing to give you safer, more accurate results.

 

To ensure compliance on a global scale, we apply harmonized methods in compliance with U.S., European, Chinese, and Japanese pharmacopoeia for raw material analyses. With advanced tools like a portable Raman spectrometer, we identify raw materials directly in their unopened containers. Additionally, our halogen moisture analyzer rapidly determines moisture content, saving time without compromising precision.

 

Raw material and excipient testing

 

Analysis Methods
Trace elemental and organic impurities ICP-MS, GC-MS
Amino acids for media identification LC-MS
Spectroscopy-based FT-IR, NIR, UV/Vis, micro-Raman
Chromatography-based HPLC/GC with multiple detectors, pre- and post-column amino acid derivatization HPLC methods
Titration Automatic, potentiometric, Karl Fischer
Other common compendial assays Melting point, LOD/ROI, optical rotation, refractivity, and viscosity*

* Other common compendial assays are available.

 

Physical chemistry assays

 

Analysis Methods
Chromatography-based SEC, RP, IEX, HIC, HILIC, Affinity
Electrophoresis-based CE, iCIEF, SDS-PAGE, Western blot
Concentration A280, SoloVPE, amino acid analysis
Content of excipient PS80/20 and other excipents

 

Compendial assays

Our compendial assays assess the following components:

  • Appearance, including color, clarity, and visible particles
  • Subvisible particulate matter via light obscuration and microscopic counting methods
  • pH, osmolality, density
  • Extractable volume, weight variation for lypholized product
  • Moisture content, reconstitution time for lypholized product
  • Delivered volume, break loose, glide force, and plunger insertion depth for prefilled syringes (PFS)

 

Biochemical and safety testing

We have strong expertise in microbial challenge in-use studies and container closure integrity testing (CCIT) and assess the following components:

  • Impurity, including residual DNA, host cell protein (HCP), Protein A, and enzymes
  • Endotoxin and bioburden
  • Sterility

 

Characterization

 

Analysis* Methods
Mass spectrometry MALDI-MS, LC-MS, LC-MS/MS with CID/HCD/EThCD/EAD
Biophysics AUC, SEC-MALS, FTIR, UV-CD, DLS, MFI, DSC, flourescence, free sulfhydrl
Functional assays Target binding, Fc binding, functional analysis

* Based on a single-source characterization platform

 

Forensic analysis

We specialize in protein-based particle ID and investigation:

  • OM/IR/Raman microscopy
  • SEM/EDS
  • Commercialized and in-house database

 

Bioassays

We leverage the following potency assays and bioassays and cover all mechanisms of action (MoAs):

  • Cell assays
  • Binding assays
  • Enzyme activity assays

Analytical solutions

 

At WuXi Biologics, we tailor our analytical solutions to evaluate specific modalities and product attributes. Leveraging antibody-drug conjugate (ADC) assays, glycan profiling, and comprehensive HCP technology and services allows us to thoroughly characterize key product attributes and impurities.

 

Solution Testing
ADC-specific assays Drug-to-antibody (DAR) ratio
Free drug
Unconjugated monoclonal antibody (mAb)
Residual solvent
Conjugation site confirmation
Glycan Monosaccharide quantitation
Sialic acid content
N/O-linked glycan profiling using HILIC-FLD/MS
Site-specific N/O-linked glycosylation using LC-MS/MS with HCD/EThcD/EAD
HCP Priority HCP kit generation
Comprehensive HCP coverage analysis using 2D-WB, 2D-DIBE, and AAE-2D DIGE
HCP identification and quantitation using LC-MS/MS
Targeted HCP quantitation
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